Synopsis of the Economic Species of Trogoderma Occurring in the United States with Description of a New Species (Coleoptera: Dermestidae)

Abstract

The recent introduction into the United States of the Khapra beetle, Trogoderma granarium Everts, a serious pest of granaries, necessitates a review of those species with which it might be confused and requires a revision of the existing keys to the nearctic species of the genus. Although the species is adequately described by Hinton (1945) and others, it is difficult to separate from some other nearctic species. Particularly is this true of its immature stages. My hope is that the keys and discussion which follow will simplify its identification, particularly for the worker not specializing in the taxonomy of the group.